LXM1640-01 데이터 시트보기 (PDF) - Microsemi Corporation
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LXM1640-01 Datasheet PDF : 5 Pages
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LXM1640-01
PRODUCT DATABOOK 1996/1997
DIRECT DRIVE QUAD LAMP CCFL INVERTER MODULE
PR E L I M I N A RY D ATA S H E E T
CONNECTOR SCHEMATIC
CN4
321
CN5
2
1
CN1
8
1
CN6
2
1
CN7
321
N.C.
1234
CN2
VHI1
Inverter
Output 1
VHI2
Inverter
Output 2
VHI3
Inverter
Output 3
VHI4
Inverter
Output 4
N.C.
1234
CN3
FIGURE 1 — LXM1640-01 Connector Schematic
Connectors:
CN1 = MOLEX 53261-0890
Mates With:
Pins: 50079-8100*, Housing: 51021-0800
* Loose (-8000, Chain) Recommended #26 AWG wiring
CN2, CN3 = JST SM04(4.0)B-BHS-1-TB
JST BHR-04VS-1
CN4, CN7 = JST SM03(4.0)B-BHS-1-TB
JST BHR-03VS-1
CN5, CN6 = JST SM02(8.0)B-BHS-1-TB
JST BHR-03VS-1
Connection Rules
1. Always install four (4) lamps. Operating with out all lamps may overdrive lamp current at maximum brightness settings.
2. Verify lamp wiring before connecting lamps to the inverter module. Connecting more than one lamp to one of the four inverter output
circuits will result in reduced brightness. The LXM1640-01 module connectors are wired per industry standard. The lamp hot wires
(high voltage wires) are always on pin 1 or 2, and the cold wire (low voltage wire) is always on pin 3 or 4.
FA I L S A F E F E AT U R E F O R M U L T I P L E L A M P O P E R AT I O N S
Our multi-output inverters are designed to keep your application
operating at near normal brightness in the event that a lamp fails.
This allows the display to remain "on-line" until lamp replacement
is convenient.
Linfinity "pairs" the lamps so that if one lamp in the pair breaks,
most of its current is added to the good lamp. CCFLs will respond
with more brightness for a period of time. Operating time in this
mode will be a function of the lamps age but should be typically
in the order of hundreds of hours.
This operating characteristic can provide adequate display
performance for a limited, but useful period of time. Shortening
of the lamp life in this mode is typically not a concern as it is
recommended that all lamps in a display be replaced at the same
time.
Lamps
IS
FIGURE 2 — Quad Output Stage
4
Copyright © 1998
Rev. 0.4 5/98
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